To the nearest tent what is the area of circle whose diameter is 21 inches
1 answer:
Answer:
It depends
Step-by-step explanation:
Area of a circle is given by
A = pi *r^2
We can find the radius by taking 1/2 of the diameter
r= 1/2(21)
r = 10.5
A = pi * (10.5)^2
A = 110.25 pi
Approximating pi with 3.14
A = 110.25 * 3.14
A =346.185 in^2
To the nearest tenth
A = 346.2 in^2
If we use the pi button on the calculator
A = 346.3605901
Rounding to the nearest tenth
A = 346.4 in^2
You need to determine whether you approximate pi by 3.14 or use the pi button on your calculator
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-0.25, -0.15, -0.6
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Caroline's soccer practice starts at a quarter after 4 P.M. And ends at 5 P.M. How many minutes does her soccer practice last?
Answer:
A quarter after 4 P.M is 4:15
So soccer practice lasts 45 minutes.
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~May
Answer:
72 pieces
Step-by-step explanation:
since 1/8 pieces would mean 8 per pie then
8*9 = 72
So 72 pieces
